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Publication Date
1981
Description
Nutritive value of 18 ryegrass (Lolium multifloriumLam.) cultivars was studied at Overton, Te1
0.42-mm screen. Plots were harvested four times during each of the first 2 years and five times in the third year. In 1977-1978 and 1978-1979, NDF and protein analyses were run on samples from 2 replications. All forage samples were analyzed for protein via the micro-Kjeldahl technique. Percentages of NDF were obtained via Van Soest extraction procedures. A seasonal increase in neutral detergent fiber (NDF) content and a decrease in protein percentage was observed. Differences in NDF were observed among cultivars and were most apparent during April and May. The differences probably were related to maturity levels of individual cultivars since earlier-maturing cultivars tended to have higher NDF levels. Tetraploids were lower in NDF, probably because they matured later than did the diploids. Protein levels decreased during the growing season from about 25 % in December to about 13 % in late May. Differences among cultivars and between ploidy levels were not significant for protein percentage.
Citation
Nelson, L R. and Rouquette, F M. Jr, "Neutral Detergent Fiber and Protein Levels in Diploid and Tetraploid Ryegrass Forage" (1981). IGC Proceedings (1981-2023). 21.
(URL: https://uknowledge.uky.edu/igc/1981/section1/21)
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Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Neutral Detergent Fiber and Protein Levels in Diploid and Tetraploid Ryegrass Forage
Nutritive value of 18 ryegrass (Lolium multifloriumLam.) cultivars was studied at Overton, Te1
0.42-mm screen. Plots were harvested four times during each of the first 2 years and five times in the third year. In 1977-1978 and 1978-1979, NDF and protein analyses were run on samples from 2 replications. All forage samples were analyzed for protein via the micro-Kjeldahl technique. Percentages of NDF were obtained via Van Soest extraction procedures. A seasonal increase in neutral detergent fiber (NDF) content and a decrease in protein percentage was observed. Differences in NDF were observed among cultivars and were most apparent during April and May. The differences probably were related to maturity levels of individual cultivars since earlier-maturing cultivars tended to have higher NDF levels. Tetraploids were lower in NDF, probably because they matured later than did the diploids. Protein levels decreased during the growing season from about 25 % in December to about 13 % in late May. Differences among cultivars and between ploidy levels were not significant for protein percentage.
